error connecting with kernal

Hello, I have just re installed windows 7 64 bit on one machine, after all o/s updates and sp1 were applied I installed eset smart v5.0.95. Everything seemed fine, I did a smart scan.
That was yesterday, I just had a pop up saying eset error connecting to kernal, then eset just vanished!
After a reboot it's working again, but is this likely to happen again?